Universal Robots UR8 Long

The UR8 Long is a six-axis collaborative robot arm with a 1750 mm reach and an 8 kg payload (10 kg under the boundary conditions given in the manual). It is built for welding, pick and place and inspection work that needs precise linear motion and high acceleration, and it has a safety-rated input at the tool flange. The arm is IP65 rated and certified for ISO Class 4 cleanrooms, and it runs from a separate control box with a 12-inch PolyScope touchscreen teach pendant.

Source checked38/38 values · 2026-10-25Universal RobotsCollaborative robot
Hover to measure reach
8 kg payloadR 1,7506-AXIS ARMREPEATABILITY ±0.08 mm05001,000mmUR8 Long · SIDE ELEVATIONReach envelope to scale · pose schematic
Payload
8kg
Reach
1,750mm
Repeatability
±0.08mm
Max TCP speed
5,000mm/s
IP rating
IP65

Specification

2 sources
Categorycollaborative robot
Axes6
Weight44.7 kg
Power consumption0.615 kW
Operating temp min0 °C
Operating temp max50 °C

Joints

NameRange min (°)Range max (°)Max speed (°/s)
Base-360360180
Shoulder-360360180
Elbow-360360240
Wrist 1-360360300
Wrist 2-360360300
Wrist 3-360360300

Motion range per axis

arc = published range
Base
720°180°/s
Shoulder
720°180°/s
Elbow
720°240°/s
Wrist 1
720°300°/s
Wrist 2
720°300°/s
Wrist 3
720°300°/s

Quick answers

What is the payload of the Universal Robots UR8 Long?
8 kg, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).
What is the reach of the Universal Robots UR8 Long?
1750 mm, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).
What is the repeatability of the Universal Robots UR8 Long?
±0.08 mm, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).
How many axes does the Universal Robots UR8 Long have?
6, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).
How much does the Universal Robots UR8 Long weigh?
44.7 kg, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).
What is the IP rating of the Universal Robots UR8 Long?
IP65, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).
What is the maximum TCP speed of the Universal Robots UR8 Long?
5000 mm/s, per UR8 Long - Long reach. Lean footprint. No compromise. (universal-robots.com).

Study notes

  • Joint architecture is 2-1-3; the arm has 6 rotating joints.
  • Footprint is Ø204 mm and the arm weighs 44.7 kg without cable; cable length is 6 m.
  • Arm materials are aluminium, plastic and steel; mounting is possible in any orientation.
  • Tool flange is EN ISO 9409-1-50-4-M6 with an M8 8-pin female connector; tool power supply is 12/24 V at 2 A (dual pin) or 1 A (single pin).
  • Tool flange I/O: 2 digital in, 2 digital out, 2 analog in (or 1 x RS-485).
  • Force/torque sensing range is ±150.0 N and ±10.0 Nm, with precision ±7.5 N / ±0.2 Nm and accuracy ±8.3 N / ±0.5 Nm.
  • Control box I/O: 16 digital in, 16 digital out, 2 analog in, 2 analog out, 4 quadrature digital inputs; I/O power supply 24 V, 2 A.
  • Control box: IP44, 460 x 449 x 254 mm, 12 kg, 100-240 VAC 50-60 Hz, powder-coated steel; an OEM version exists.
  • Teach pendant: IP54, 1280 x 800 pixel display, 300 x 231 x 50 mm, 1.8 kg including 1 m cable, 4.5 m cable.
  • Supported software interfaces include Modbus TCP (client/server), EtherNet/IP adapter, PROFINET device with PROFIsafe, and ROS/ROS2; the injection moulding machine interface (SPI AN-146 and Euromap-67) applies only to the OEM version.
  • Humidity limit is ≤90% RH non-condensing; noise is below 67 dB(A).
  • Safety compliance is stated against EN ISO 13849-1 (PLd Category 3), EN ISO 10218-1 and UL 1740.

Safety

  • 23 configurable safety functions are available on the robot.
  • Safety functions comply with EN ISO 13849-1 (PLd Category 3), EN ISO 10218-1 and UL 1740.
  • A native safety-rated input at the tool flange lets hand-guiding and teaching end-effectors integrate into the robot's safety architecture without external safety modules.
  • Operating ambient temperature range is 0-50 °C.
  • Arm protection class is IP65 and it is rated for ISO Class 4 cleanroom use; the control box is IP44 and the teach pendant is IP54.
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